x86: Fix spelling error in the memcpy() source code comment

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Link: http://lkml.kernel.org/r/201105011409.21629.bvanassche@acm.org
Signed-off-by: Ingo Molnar <mingo@elte.hu>

arch/x86/lib/memcpy_64.S

@@ -49,7 +49,7 @@ ENTRY(memcpy)
 	jb .Lhandle_tail
 
 	/*
-	 * We check whether memory false dependece could occur,
+	 * We check whether memory false dependence could occur,
 	 * then jump to corresponding copy mode.
 	 */
 	cmp  %dil, %sil